fix model name

Author: MengshiZhang

assets/md/api-reference/chat-completions/curl.md

@@ -2,7 +2,7 @@
 curl -X POST "https://api.forge.tensorblock.co/v1/chat/completions" \
   -H "Content-Type: application/json" \
   -d '{
-    "model": "gpt-4o",
+    "model": "OpenAI/gpt-4o",
     "messages": [
       {
         "role": "user",

assets/md/api-reference/chat-completions/go.md

@@ -11,7 +11,7 @@ import (
 func main() {
   url := "https://api.forge.tensorblock.co/v1/chat/completions"
   body := strings.NewReader(`{
-    "model": "gpt-4o",
+    "model": "OpenAI/gpt-4o",
     "messages": [
       {
         "role": "user",

assets/md/api-reference/chat-completions/javascript.md

@@ -1,6 +1,6 @@
 ```javascript
 const body = JSON.stringify({
-  "model": "gpt-4o",
+  "model": "OpenAI/gpt-4o",
   "messages": [
     {
       "role": "user",

assets/md/api-reference/chat-completions/python.md

@@ -3,7 +3,7 @@ import requests
 
 url = "https://api.forge.tensorblock.co/v1/chat/completions"
 body = {
-  "model": "gpt-4o",
+  "model": "OpenAI/gpt-4o",
   "messages": [
     {
       "role": "user",